c++/10615: Forgetting 'typename' in function template return type causes segmentation fault.

[gccbugs@contacts.eelis.net]

>Number:         10615
>Category:       c++
>Synopsis:       Forgetting 'typename' in function template return type causes segmentation fault.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-illegal-code
>Submitter-Id:   net
>Arrival-Date:   Sun May 04 02:16:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Eelis van der Weegen
>Release:        gcc version 3.2.2
>Organization:
>Environment:
Configured with: ../gcc-3.2.2/configure --prefix=/usr --enable-shared --enable-threads=posix --enable-__cxa_atexit --disable-checking --with-gnu-ld --verbose --target=i386-slackware-linux --host=i386-slackware-linux
Thread model: posix
>Description:
Compiling the following code:

  template <class T>
  struct A
  {
    struct B;
    typedef typename B::type t;
  };

  template <class T> typename A<T>::t::u f (); // no problem
  template <class T>          A<T>::t::u g (); // forgot typename -> KABOOM!

results in the following error:

  internal error: Segmentation fault

at the indicated line.
>How-To-Repeat:
Compile the code from the description.
>Fix:
No idea.
>Release-Note:
>Audit-Trail:
>Unformatted: